While doing CCNP lab 2-2, EIGRP, I ran into a snag with the "show protocols" command. according to the lab, it calls for me to issue the command to view the interfaces, their status, ip addresses, etc...

However, I get an incomplete command message. Seems that can't just issue "show protocols" alone and I need to enter additional information (i.e. the type of interface). So my first thought was that the lab manual had an error.

A google search on that command led me to a Cisco document (from their site) showing that the command does not need to include the optional interface type.

I very rarely use the "show protocols" command. On my 12.4.15T12, it works with or without additional parameters. The "show ip protocols" command is the one that I use regularly and will definitely work without additional parameters in all cases.